fix: harden UCE runtime and starter

site/doc/pages/sqlite_affected_rows.txt

@@ -0,0 +1,19 @@
+:sig
+u32 sqlite_affected_rows(SQLite* db)
+
+:params
+db : pointer to an active SQLite connection
+return value : number of rows changed by the most recent statement
+
+:see
+>sqlite
+sqlite_query
+sqlite_insert_id
+
+:content
+Returns the number of rows changed by the most recent insert, update, or delete statement on the connection.
+
+```cpp
+sqlite_query(db, "update users set visits = visits + 1 where id = :id", params);
+print(sqlite_affected_rows(db));
+```